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| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Business Strategy Business Model Stress Test |  Product Strategy Lean Canvas |
|---|---|---|---|
Purposedifferent | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | A Business Model Stress Test checks how well a business model holds up under pressure and headwinds. It compares strengths, risks, market logic, and courses of action. The result is captured as a stress-test report and action plan per scenario. | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. |
Complexitydifferent | Medium | High | Medium |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | Half day | 45-90 min |
Participantsdifferent | Designers, developers as users, and facilitation | 3-8 | 1-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Stress Test Report, Action Plan per Scenario | Lean Canvas, Core Assumptions, Experiment Backlog |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | StrategyBusiness modelRiskDiagnosis | StartupLeanAssumptionsBusiness model |
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